Refrigerating-machine.



R. WHITAKER.

REPRIGERATING' MACHINE.

APPLICATION FILED APR.27,1904.

562,599, Patented Aug. 31, 1909.

. y ZSHEETS-SHEET l.

Attorneys.

R. W'EITAKER.

REPRIGERATING MACHINE.

` APPLICATION FILED APR.27, 1904. y

932,599. Y Patented Aug. 31, 1909.

2 SHEETS-BHEET 2` In Ven tot MM w 757 WMW Attorneys.

prrr srnrns 'PATENT onere.

RICHARD WHI'EAKER, OF'NEW BRUNSWICK, JERSEY, ASSIGNQRpBY DIRECT AND MESNE ASSIGNMENTS, '1 "0 BRUNSWICK REFRIGERATHG COMPANY, A CQRPORA'TION 0F NEW JER- SEY.

i nErmcanAmmc-Mscmnn specification or Leners Patent. 'Patented Aug. 31, loos.

l Application filed April 27, 1904. Seria1,No`.205,087.

l I' To all whom 'tima/y concern;

' of the plant.

I Be it known that 1, RICHARD WnrrAKeR, a ycitizen of the United States, residing in the city of New Brunswick, county of Middlesex, and State of New Jersey, haveinvented a certain new and useful lm rovement in Retrigerating-ldachines, of W ich the following is a description. g

The present invention relates toimprovements 1n compression yreirigerating machines and relates particularly to the circulating system of small isolated plants and means for supplying ammonia thereto.

So far as lam aware, it is at the present time customary in small plants employing a small amount of ammonia, say about 5 or 10 lbs. to provide a tank or receptacle, which tank forms a portion of the circulating system. andris filled from a commercial tank,

`Which holds about lbs. of ammonia in liquid form. This tank is provided with valves and connections to the piping of the ice machine so that enough ammonia may be drawn oli from the tank to ,fill the reservoir When the reservoir becomes empty, or does not containsuicient ame moniato allow the machine to be satisfac torily operated, the large tank is again connected and the reservoir lled.

The above described means for supplying ammonia to the apparatus is open to the objections that the constant moving about of a tank holding 50lbs. of ammonia is expensive, it being understood that it is not ordinarily feasible to keep such a large tank l wihin easy reach ofthe plant, as 5 or 10 lbs.

of ammonia in a small plant will ordinarily last several months. The large tank must ordinarily bc transported a considerable distance in order to charge a small machine, which will add to the expense of operating the' plant, and is therefore objectionable. Another objection to the plan now in use is the dillculty of making connections with the tank, and the danger of leakage in transferring ammonia from the tank'to the reservoir,

' which makes it necessary to have a skilled "tank,

person attach a tank, draw ofi' sufficient arn-v moma 'to fill the rcservolr, and remove the .l attain these objects'by- '.Fi'gurel is a diagrammatic view oi one form of com'ession machine. Fig` 2 is a top view of t e' removable tank; llig. 3 is a vertical sectional View thereof taken on the line 3&3' 'of y Fig. 2; and Fig. /1 is a view partly in section, showing the top of the tank and the cover therefor.

In all of the views like parts are designated .by the same numerals of reference. f

In carrying out my invention, I providea tank, bottle lor flask 1,Which is secured to any portion of the ice machine, and forms a portion of the circulating sys tem thereof. lfhis tank is removablyA attached in position, and is provided With valves so that when removed or` before being aY plied its contents Will-not escape.. It is pre erably of sutlicient size tohold the necessary amount of liquid ammonia used in the system of a small iso- The com ressionapparatus illustrated in Fig. 1 is su stantially tliesame as that do Iscribed in my Patent July 18, 190.5, ,'No. 795,014,1)ut the removable tank 1 is used in lieu of the fixed tank 13 illustrated in that. patent. y

In Fig. 1 the portions of the compression machine which have a necessary relation to the present invention are the compressor 2, the expansion coil 3 and the tubular circulating system com rising the pipe 4 connecting Ithe tank 1 and t 1e compressor 2, and the pipe 5 connecting the tank iwith the expansion coil 3. The tank'l is located as shown in Fig. 1 between the corn ressor Zand the ex;- p'ansion coil-3, so that t e compressed liquid ammonia will pass from the compressor into the tank, and lrom the tankwill be expanded into the coil 3. and the tankfla are located within that portion of the system Whichincludes the pipe (i and the expansion' valve 7 is located within that part of the system which includes the Pire '5- Y As shown in Fig. l the tank 1 is removably secured to the su )port 8 which also in this The cooler or 'condenser 6' 'otherparts oi' the a paratus. To the support 8 is secured a s elf or bracket 9 upon which the .tank 1 rests, and arms 10-10. These arms are hinged at 11,'to the sup ort 8, 'so `that they can besw'ung outwarr as showni'bibken lines in Fig. 2 to permit the ready attachment or removal ol' the tank.

."tsnl muy be drown ofi. A not extend down quite to the bottom of the The free ends of the arms are secured together, by e suitable mee..s 12 thaty shown consisting of e. holt.

The tank fr, shown more particularly in Fig. 3, comprises e sheli i3 mede sufeiently` strong to' withstand the riscossa-rv pressure.

.It is provided with e threaded opening le et the top Within which is inserted e. plug i5. Within the plug 15 eretllo two vrilres oud 17. The valve leoimuuru'oetes with the ipe e, and the weise 17 with the pipel 5. ,these pipes stre provrded et their extremities with 'unions or oonneotrons euch of which comprises e. washer 19 seeure'd'to the threaded extremity;r of the pipe, and, which is forced l against the seat 20Lhy o gland 21; peeking 22 j making 'e tight joint.

Esc/h of the pipes 4 and 5 may oe provided with thisform of ooupiug, although `this is not ueeessztryes (other forms msybe used, end ea-eh of the I'ipes'is suiioiently iiexilole to allow tliem'to e bent outward in attaching or detrtohing the tenirA 3.-.

s 1bearing portion 24 which is adapted to rest upon a soft metal seat 25. The stem 231s provided with thresds which engage with! rotated und the telve opened or Closed The'vslve seats 25l communicate with `the in-A terior of the sheil by means of openings 31,' that vulve which eolnrriunoetes/with the pipe 5 herring o. depending .pipe 32 so that the greater portio oi the contents of the This pipe 32 does tenir, 'but ends :t slight distance shove it'os 'hewln so that any impure substances conteited in. the ammonio will not he drown off when tliodevce is being used as o. part ofthe circo '1g system. The discharge tube 32 having ts open end belor.Y the top of the tank uiilldrmr oil3 the ammonio. from the body thereof and' oil or other light substance Hoeting upon 1t will not be drawn o'if. At the ss u, ready'meuns for introducing; the

Esch of the vulves i6 und 17 ss' shown 'in Fig. 3 comprises e stern 23 having bottom of the shell a. plu 33 provided 55 ring oi oil, should suoli get within the tank,

when the letter is removed Afrom the nmohino.

The plug 15 may he removed iroin the shell for the purpose of lrepairing' the Valve or @leuning the interior oi the shell., and sortes pipo 32 within the shell. The plug 15 ond 'vulves muy be .protected during` trsnsportution by o removable cover B5. This cover is preforsloly provided with .en internally threaded hose, which engages with the threaded nook {it}A oi'` the tardi; so that it muy be readily removable.

In soeordsuee with the provisions ol' the 'patent ststutes,`lr have described the principle oi'niy invention, togetherrwith the :tpparsrtus which i now conslder to represent the best enibmhment thereof hut l desire to `here it understood tl et the apparatus shown isinerely illustrative und that Ithe invention een he carried out in other wir-ys.

Haring now desrizrilied my invention what claim and desire to secure hy Letters Putent, is z- The oornhiimtion 'with the tubular oxpuxb sion system of a zornpressioo refrigemting machine, of s, tout; i'or holdingr anhydrous ammonia und oomprisingr u. shell having n threaded opening in its upper end, eth1-oeded plugP in seid opening havingF two vorti oilily disposed vulves, unions in the sides of said plusr respectively communioziting with seid Valves and respectively `Connecting;r seid plus` with ther piping connected with the oompressoreud thefpipiugg connected with. the expansion coil, und :t depending pipe oxtending down intossid shell und connor-,ted with the valve and pipingr which communicates with said coil, sii-id. tenir heini; located in the system between "seid compressor undseid coil` so that the iluid muy circulate through it and seid tank he readily detachable from the system; substantially es set forth. v

This speoiiiozrtion signed and witnessed this day oi' April., i904.

Risi-IARD WnrniKnR.

Witnesses:

' EDWARD Momus,

J. L. W. Csnnunm 

